This repository publishes a feature matrix showing protocol capabilities supported by Nostr clients.
Open source
24 alternativesarduino-nostr
arduino-nostr connects Arduino projects to the Nostr protocol, with the repository describing Nostr as an open communication protocol.
About arduino-nostr
arduino-nostr is an open-source Arduino library for interacting with Nostr relays from Arduino microcontrollers. It provides components for creating notes, managing multiple relays, queueing messages, and building relay requests.
It supports sending NIP01 kind 1 notes and NIP04 kind 4 private messages, receiving and decrypting NIP04 messages, and subscribing to relay events with REQ messages. Example scripts are included in the examples/ folder.
Key features
- Create NIP01 and NIP04 notes with NostrEvent
- Send kind 1 notes and kind 4 private messages
- Receive and decrypt NIP04 messages
- Broadcast to multiple relays with custom callbacks
- Queue relay messages for sending after connection
- Subscribe to relay events using REQ messages
Best for: Developers building Arduino microcontroller projects that interact with Nostr relays.
Good for
- Open source under MIT license
- Includes example scripts for basic use
- Handles multiple relays with queueing and timeout controls
arduino-nostr at a glance
- Category
- Social & Communities › Nostr
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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arduino-nostr FAQ
What hardware does it work with?
Arduino microcontrollers that interact with Nostr relays.
What types of Nostr messages are supported?
NIP01 kind 1 notes and NIP04 kind 4 private messages, including receiving and decrypting NIP04 messages.
Where are usage examples?
In the examples/ folder in the repository.
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